The NEST camera for indoors do not rely on batteries, so you can have “plug-in-and-go” security. When you download the Nest Aware app, the NEST Camera will record 24/7, and you will have access to up to 30 days of footage. If the NEST Cam picks up strange motion or sound, the camera alerts you immediately with a key image from the event. In addition, the NEST Cam will alert you of events happening in important areas. You will get a notification when a person enters a room or when something happens in critical activity zones. You miss an alert, the NEST Camera app will keep the information. See an entire day of activity in seconds. Know when the event happened, and see snapshots of important moments. The NEST Cam has a built-in speaker and mic, so you can hear what’s happening and say something about it.